Home / 21,678.16-32,521.83-7,637.62

Finding the Fourth Proportional to 21,678.16, 32,521.83 and 7,637.62

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Solution

The fourth proportional to 21,678.16, 32,521.83 and 7,637.62 is: 11,458.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,678.16 : 32,521.83 = 7,637.62 : x
  2. Step 2: Convert to fraction form
    21,678.16/32,521.83 = 7,637.62/x
  3. Step 3: Cross multiply
    21,678.16x = 32,521.83 × 7,637.62
  4. Step 4: Simplify right side
    21,678.16x = 248,389,379.24
  5. Step 5: Solve for x
    x = 248,389,379.24/21,678.16
  6. Step 6: Final answer
    x = 11,458.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.